Stainless Steel 254SMO

STAINLESS STEEL 254SMO

STAINLESS STEEL 254SMO PIPES TUBES

254SMO / EN 1.4854 / UNS S35315

Chemical Composition: (%)

C:0.02
Mn:1.0 max
P:0.03 max
S:0.01 max.
Si:0.80 max.
Ni:17.5~18.5
Mo:6.0~7.0
N:0.18~0.25 max
Cu:0.5~1.0
Fe:55.69 or Bal


Mechanical Properties

-Tensile Strength (MPa): ≥650 min
-Yield Strength (MPa): ≥310 min
-Elongation (%): ≥35 min
-Hardness (HRB): ≤96 max


Grade: (Equivalent / Renowned As)

-254 SMO
-UNS S31254
-DIN EN 1.4547
-Werkstoff Nr. 1.4547
-WNR 1.4547
-DIN EN X1CrNiMoCuN20-18-7
-DIN EN X1CrNiMoCuN20187
-Alloy 6Mo
-F44
-SS2378
-6Mo Superaustenitic
-Alloy 6Mo


Standard (ASTM):

Seamless Pipes -A312
Seamless Tubes -A213, A269, A270, A511, A632


Standard (ASME):

Seamless Pipes - SA 312
Seamless Tubes - SA 213, SA 269, SA 270, SA 511, SA632



Standard (EN):

- Seamless Pipe & Tube = EN 10216-5 TC1 or EN 10216-5 (Pressure Purpose)
-Seamless Pipe & Tube = EN 10297-2 (Mechanical & General Engineering Purpose)

For detailed information, please contact info@kobsindiapipe.com